262 SEA MOSSES. 



now examined, it will be found that they repeat the 

 habit of the whole plant, sending out branchlets all 

 about, which are longer towards the lower part of the 

 branch, and shorter upwards. 



This gives every main branch a sharply pointed 

 outline. These points thrust themselves out beyond 

 the principal mass of the frond in a very characteristic 

 way. So marked ' is this feature, that it constitutes 

 the one easily recognized sign, when taken in con- 

 nection with the robust stem and main branches, by 

 which to know the species. Though the stem and 

 branches are so stout, for a Callithamnion, the ultimate 

 ramuli are very fine, short, and much alternately 

 divided. 



The color is a fine dark red. Mr. Collins found 

 it at Revere, growing on Zostera, in September. I 

 have found it in abundance, all through the season, 

 on the south coast of New England, but strange 

 to say, during several seasons of diligent collecting, 

 have never found it at Marblehead. Miss Booth 

 collects it at Orient, L. I., washed ashore from deep 

 water. 



There is no reason to regret that Professor Bailey's 

 name and memory have been preserved in so charm- 

 ing, and so well characterized a species, as is this 

 " beautiful Httle shrub." 



